1. Giving judgment, FORBES J said: In this case, the plaintiffs, Ravenseft
Properties Ltd, sue the defendants, Davstone (Holdings) Ltd, substantially
on repairing covenants in a lease in which the plaintiffs are the landlords
and the defendants, tenants. The building is part of a complex at Notting
Hill Gate in London. The part of the building with which we are concerned
is firstly a 16-storey block of maisonettes, and secondly a four-storey
block of flats, those buildings being known as Campden Hill Towers and
Campden Hill Flats respectively. Campden Hill Flats plays only a subordinate
part in this matter and I shall concentrate very largely on Campden
Hill Towers. That building is a modern, rectangular structure made with
a reinforced concrete frame. It looks, if I may be excused the analogy,
like nothing more than a set of pigeon-holes, or perhaps to use a marine
analogy, a flag locker, and the square section pigeon-holes each contain
one maisonette on two floors. The edges of the pigeon-holes are veneered,
if I may pursue the analogy, with a cladding of Portland stone. This
stone is about 3in thick and 8in wide and runs upwards along each of
the vertical divisions and horizontally along each of the horizontal
ones. At the edges of the structure there are slightly wider bands of
stone running vertically. The same treatment occurs on both the eastern
and the western elevations. The building was built between 1958 and
1960 and it was let in 1960 to a predecessor of the defendants by a
predecessor of the plaintiffs.

2. In 1973 the stones in the cladding on the eastern elevation were
observed to be loose and in some danger of falling, and emergency measures
were taken to secure the more dangerous of the stones.

The plaintiffs notified the defendants of this situation and called
upon them to carry out the necessary work to repair and secure the stone
work. The defendants, while agreeing that the work was necessary, disputed
any liability to pay for it under the repairing covenants. The plaintiffs
thought, quite rightly, that the matter was urgent, and the plaintiffs
and the defendants accordingly agreed that the plaintiffs should give
the orders and assume the primary liability for the remedial work necessary
and leave the question of the liability of the defendants over for later
determination. The work was put in hand. Initially I think the defendants
paid half of the earlier bills but later stopped paying, and the sum
in dispute is now claimed by the plaintiffs in this action.

3. I do not think it is necessary to go into great detail about the
cause of the difficulty which arose with the stone. The main concrete
frame and the stone cladding have different coefficients of expansion.
The result was that in certain sections some of the stones were being
bowed away from the concrete frame.

The potential danger can be realised if it is understood that if the
stone cladding is pinned or fixed in some way to the main frame at 10ft
intervals, 100th of an inch of difference in the extent of expansion
in 10ft will result in a bowing of one inch in the centre of that part
of the stone work. There were three stones to each floor, six that is
to each maisonette, and every third stone was what has been called a
'booted' stone; that is that it was, in section, 'L' shaped, with the
projection of the 'L' running back into a channel or piece cut out of
the main frame, so that the booted stone was held in that position.
The stones, including the booted stones, were intended to be tied back
into the main frame by metal straps of some kind, but in fact many of
the ties were either not there or misapplied in the eastern elevation.

Besides the ordinary shrinkage of the frame which occurs over the first
few years after construction with a concrete frame building of this
kind, there are also other movements which take place in a concrete
frame structure during the life of the building and it will be seen,
therefore, that a difference in expansion coefficient between the cladding
and the frame is likely to cause difficulties where the ends of the
stones abut on to the horizontal cladding, where in effect they will
be prevented from movement in a vertical direction. In this case the
bowing of the stones was principally due to lack of expansion joints,
but there was a subsidiary cause of failure and that was the omission
to tie in the stones properly. As I understand the evidence, if the
stones had been tied in properly, any individual stones would have been
unlikely to fall, despite the movement of the frame relative to them.
The movement would, however, possibly or probably cause cracking and
chipping of the stones with, of course, an attendant degree of danger
of the fall of smaller pieces of stone, but not the whole stones themselves.

When a full inspection was made of the building and the very large
number of untied stones were found in the eastern elevation, it was
decided that the only safe way of dealing with that was to take down
all the stone cladding on this elevation and replace it with proper
ties and also with expansion joints. I should mention here that the
top three storeys of the building were slightly out of plumb. The frame
was leaning backwards slightly and the stones were set plumb, so that
the distance between the back of the stones and the front of the frame
increased a little in the top three or four storeys. The expansion joints
were effected by cutting off half an inch from the top of each stone
which lay under a booted stone, in other words every third stone on
the elevation, and filling the gap with a plastic expansion absorbing
material. On the western elevation and on Campden Hill Flats the symptoms
were not so severe.

Nevertheless in view of the potential danger, two out of each lift
of three stones were pinnned to the frame by inserting metal dowels
through the stones into the frame at a downward angle, and once again
the top half inch of every third stone was removed and an expansion
joint placed in the gap. It was not necessary, however, as I understand
the evidence, on the western elevation of Campden Hill Towers and on
Campden Hill Flats, to remove the cladding stones in order to carry
out this remedial work.

4. Throughout the work the defendants' surveyors joined in the inspection
of the work from time to time with the plaintiffs' consulting engineers
and at no time was there any suggestion that the work being done was
unnecessary, though, of course, the defendants maintained their argument
that they were not liable under the repairing covenants.

5. The necessity for placing expansion joints in a construction of
this kind was not realised by architects or structural engineers at
the time the building was constructed and it was not engineering practice
at that time to include expansion joints when a construction of this
type was being carried out. It was only in 1961, when the publication
of the Building Research Station's Annual Report for 1960 pointed out
the difficulty and danger, that the problem was recognised, and that
report suggested sensible remedies. By 1973-74 when this remedial work
was carried out it could be said to have become standard practice in
constructing a building in this way to include expansion joints of this
type.

6. I should turn now to the repairing covenants in the lease. It is,
in fact, an underlease, but I do not think Ineed bother at all about
the headlease. There are three sub-clauses to which I need refer and
only three. They appear in clause 5 of the underlease, which is the
main clause concerned with the tenants' covenants. Subclause 6, to repair,
reads in this way: when where and so often as occasion shall require
well and sufficiently to repair renew rebuild uphold support sustain
maintain pave purge scour cleanse glaze empty amend and keep the premises
and every part thereof (including all fixtures and additions thereto)
and all floors walls columns roofs canopies lifts and escalators (including
all motors and machinery therefor) shafts stairways fences pavements
forecourts drains sewers ducts flues conduits wires cables gutters soil
and other pipes tanks cisterns pumps and other water and sanitary apparatus
thereon with all needful and necessary amendments whatsoever (damage
by any of the insured risks excepted so long as the Lessor's policy
or policies of insurance in respect thereof shall not have become vitiated
or payment of the policy moneys be refused in whole or in part in consequence
of some act or default of the Lessee) and to keep all water pipes and
water fittings in the premises protected from frost and to be responsible
in all respects for all damage caused to the premises or to the said
buildings or any part thereof or to the neighbouring property or to
the respective owners or occupiers thereof through the bursting overflowing
or stopping up of such pipes and fittings
occasioned by or through the neglect of the Lessee or its servants or
agents.

7. I have read that in full to indicate that it is one of those clauses
in which the ingenuity of the draftsman has been given full rein in
an attempt to cover every conceivable eventuality.

8. Then we pass to subclause 11: to permit the Superior Lessors and
the Lessor at all reasonable times during the said term to enter upon
the premises and every part thereof to view the
state and condition of the same and to take any measurements plans or
sections thereof and of all defects decays and wants of reparation there
found to give to the Lessee notice in writing in manner hereinafter
prescribed.
And subclause 12: within three months next after every such notice as
aforesaid (or immediately in case of urgency) well and sufficiently
to repair and make good all such defects decays and wants of reparation
to the premises at the Lessee's own cost absolutely Provided Always
that if the Lessee shall fail to comply with the requirements of any
such notice as aforesaid it shall be
lawful for the Lessor (but without prejudice to the right of re-entry
hereinafter contained) to enter upon the premises at any time after
the expiration of such three months or immediately in case of urgency
and execute such repairs and works and the cost thereof (including any
surveyors' or other professional fees incurred) shall be repaid by the
Lessee to the Lessor on demand.

9. In addition to those three covenants, and subclause 6 and subclause
12 are specifically pleaded in the statement of claim as giving rise
to causes of action, there was also an agreement between the parties
to which I have already very briefly referred, namely that the work
should be done and that there should be an argument, if necessary, about
the cost of it later. Now that is pleaded in paragraph 10 of the statement
of claim in these terms:
Further on or about January 24 1974 it was agreed inter alia between
the plaintiffs and the defendants by their agents that the work of repairing
and making good the said defects decays and wants of reparation should
be carried out as a matter of urgency by the plaintiffs' contractors
and that the cost of such works should be paid by the defendants if
they were liable for the sum under the terms of the said underlease.
The works of repair and making good were commenced pursuant to the said
agreement.

10. Now that paragraph is admitted in the defence, so that it seems
to me it is quite unnecessary for me to look further than at the allegation
as set out in the statement of claim and admitted in the defence. There
is correspondence of around that period which supports that paragraph,
but I do not think it is necessary in view of the admission on the pleadings
to advert to that further.

11. Now despite somewhat lengthy cross-examination of the plaintiffs'
witnesses, there is here no dispute on fact and the defendants called
no evidence. In these circumstances the plaintiff landlords claim to
be reimbursed by the defendant tenants the cost of the work carried
out and they put their claim under three headings. First, under the
repairing covenant, clause 5(6); secondly under the covenant to pay
the cost of repairs carried out by the landlord under clause 5(12);
and thirdly under the agreement of January 24 1974. In fact, both counsel
agree that the agreement adds nothing new as it merely requires the
tenant to pay what it is due under either clause 5(6) or clause 5(12).

12. The tenants' defence is two-fold. Mr Colyer says, first, that there
is in that branch of landlord and tenant law concerned with repairing
covenants, a doctrine of inherent defect which is applicable to such
covenants to repair. This is that where wants of reparation arise which
are caused by some inherent defect in the premises demised, the results
of the inherent defect can never fall within the ambit of a covenant
to repair. Secondly, he says if that proposition is wrong the covenantor
is still not bound to pay for any works which, in fact remedy the inherent
defect. The landlords answer that broadly in this way. Mr Bernstein
says there is no such thing as a doctrine of inherent defect. The question
is simply this, 'is what the tenant is asked to do fairly represented
by the word 'repair'?' and this question is to be judged as a matter
of degree in each case.

13. The leading cases on the matter have been referred to by both counsel
and I need only, I think, list them at this stage and then consider
at any rate some of them in a little more detail later. They are Proudfoot
v Hart (1890) 25 QBD 42; Lister v Lane and Nesham [1893] 2 QB 212; Wright
v Lawson (1903) 19 TLR 203, 510; Lurcott v Wakely and Wheeler [1911]
1 KB 905; Calthorpe v McOscar [1924] 1 KB 716; Pembery v Lambdin [1940]
2 All ER 434; Sotheby v Grundy [1947] 2 All ER 761; Collins v Flynn
[1963] 2 All ER 1068 and Brew Bros Ltd v Snax (Ross) Ltd [1970] 1 QB
612. All these cases are, I think, very well known and I do not intend
to recite the facts of the judgments in detail, though there are one
or two matters which will have to be considered more carefully. Of these
cases it seems that it is unnecessary to consider further the cases
of Proudfoot v Hart and Calthorpe v McOscar. They are concerned with
questions of the standard of repair required under a repairing covenant
rather than what is included in the term 'repair.'

14. One should start with the case of Lister v Lane and Nesham and
the frequently quoted passage from the judgment of Lord Esher MR at
p 216.
If a tenant takes a house which is of such a kind that by its own inherent
nature it will in course of time fall into a particular condition, the
effects of that result are not within the tenant's covenant to repair.
However large the words of the covenant may be, a covenant to repair
a house is not a
covenant to give a different thing from that which the tenant took when
he entered into the covenant. He has to repair that thing which he took;
he is not obliged to make a new and different thing, and, moreover,
the result of the nature and condition of the house itself, the result
of time upon that state of things, is not a breach of the covenant to
repair.

15. From this passage and the case in general Mr Colyer derives this
proposition. If it can be shown that any want of reparation has been
caused by an inherent defect, then that want of reparation is not within
the ambit of a covenant to repair. Inherent defect he defines as an
omission of something in the original design. A defect in the quality
of workmanship or materials is not, he says, an inherent defect. The
want of reparation in this present case, Mr Colyer says, was the failure
to reconstruct the wall; in Lister's case, by providing the whole house
with underpinned foundations and that want of reparation was directly
due to the omission of proper foundations in the original construction.

16. I started with Lister's case and the well-known passage from Lord
Esher's judgment, but Mr Colyer says that Lister's case itself was founded
on Soward v Leggatt (1836) 7 C & P 613, and it is necessary to look
briefly at that case. There the floor joists were repaired by laying
them on bricks rather than on mud, as the original floor joists had
been laid, and Mr Colyer seeks to found an argument from that, that
any work to a building which involves a different method of construction
must be regarded as giving to the landlord a different thing from that
which the tenant took. But such a broad proposition cannot, I think,
survive close consideration of the later case of Lurcott v Wakely and
Wheeler. It should be remembered that in that case the court was dealing
with the rebuilding of the eastern external wall of a house in Hatton
Garden and that what had happened was that the premises had been certified
as being in a dangerous state by the district surveyor and that later,
in compliance with a demolition order, under the London Building Acts,
the plaintiff had taken down the wall to the level of the ground floor,
and then, in compliance with a further notice by the district surveyor,
had pulled down the remaining wall and rebuilt it with concrete foundations
and damp courses in accordance with the requirements of the Act. The
question was whether the tenant was liable under the repairing covenant
for this work and it is clear that the wall originally lacked concrete
foundations and damp courses, and that the insertion
of these features in the rebuilt wall was the result of statutory notices
by the local authority. Both Sir Herbert Cozens-Hardy MR and Buckley
LJ regarded the matter as a question of degree rather than as one of
method of construction, and clearly the method of construction was wholly
different. In any event, Mr Colyer's first point depends on causation,
and Soward v Leggatt was not concerned with direct causation but turned
on whether the work was an improvement or not, which is Mr Colyer's
second rather than his first point.

17. Turning to Wright v Lawson Mr Colyer explains that in the same
way as he explained Lister's case. There, he says, the want of reparation
complained of by the landlord was the failure to provide a bay window
supported on pillars but this failure in turn was directly due to the
absence of sufficient stability in the house to support a cantilever
bay window. Mr Colyer accepts that the only case in which this doctrine
was argued was Collins v Flynn. It is necessary therefore to look at
that case but before doing so one should, I think, look at Sotheby v
Grundy because Sir Brett Cloutman deals with Lister's case and Sotheby's
case in a sense together.

18. Now the facts in Sotheby were not unimportant. The house which
was the demised premises in that case was found in 1944 to have bulged
and fractured walls and the house was condemned as a dangerous structure
and demolished by the council. Expenses incurred by the council were
recovered from the landlord who sought to recover them from the tenant
as damages for breach of a repairing covenant, so the case itself was
not directly concerned with work of repair but with the cost of demolition
due to failure to repair. The evidence showed that in fact the house
was built, in defiance of the requirements of the Metropolitan Building
Act 1855, entirely without footings or, in some places, on defective
footings and in consequence, and because of the defective footings,
there was every likelihood that the house would, in fact, fall into
a dangerous state in which it did fall. 'That very wise and experienced
judge,' as Sachs LJ in the Brew Bros case called him, Lynskey J found
that the wants of reparation were caused by what he called 'the inherent
nature of the defect in the premises' but nevertheless felt it incumbent
upon him to consider as a matter of degree whether the finding that
the tenant was liable for the works required would be asking the tenant
to give the landlord something different in kind from that which had
been demised. This is clearly to reject, or overlook, any argument that
a want of reparation caused by inherent defect could not in any circumstances
be within the ambit of the repairing covenant.

19. Now looking at the case of Collins v Flynn, Sir Brett Cloutman
deals with these points at pp 1073 and 1074, starting at 1073 (f). The
last case that is really in point is Sotheby v Grundy. This was the
case of the condemned house built in or about 1861, the main walls having
been built either without footings or defective footings. The foundation
had settled and this could have been avoided only by underpinning and
substituting a new foundation. On the authority of Lord Esher's judgment
in Lister v Lane and Nesham, it was held that the tenant was not liable
for the cost of
demolition. The expenses were incurred because of the inherent nature
in the defect of the premises, and, therefore, did not come within the
terms of the repairing covenant. Plainly the doctrine of liability for
the defects in the subsidiary part could have nothing to do with that
case. The case, it seems to me, was on all fours with Lister v Lane
and Nesham. Oddly enough
Lynskey J does introduce it in what I think is an obiter passage. He
said, 'It may be that the inherent nature of the building may result
in its partial collapse. One can visualise the floor of a building collapsing,
owing to defective joists having been put in. I do not think Lister
v Lane would be applicable to such a case. In those circumstances, in
my opinion, the damage would fall within the ambit of the covenant to
repair, but, as I say, it must be a question of degree in each particular
case';

20. And the learned Official Referee went on to talk about what he
described as 'obiter joists,' referred to also in Lister's and Lurcott's
cases.

21. Then at page 1074(d):
I now come to the crucial point. Do the words 'repair' and 'renew' import
a liability to rebuild with newly-designed foundations and footings
the pier supporting the girder, which in turn carries a great part of
the rear wall and a part of the side wall in addition? This is manifestly
a most important improvement which, if executed by the tenant, would
involve him in rendering up the premises in different condition from
that in which they were demised and on the authority of Lord Esher MR
in Lister v Lane and Nesham I do not think that the tenant is under
any such obligation.

Furthermore, although a suggestion of liability for removal of an inherent
defect in a subsidiary part seems to have been touched on in Sotheby
v Grundy, I do not think that the obiter remarks of Lynskey J as to
defective joists have any bearing on the present case.

22. In these passages it seems to me that Sir Brett misdirects himself
on the ratio of Sotheby's case. The question of whether the inherent
nature of the building might result in its partial collapse was not
obiter at all. It was part of the ratio in this sense that, treating
the question as a matter of degree, a partial collapse, in the view
of Lynskey J, would have been of a degree which brought it within the
tenant's covenant to repair, whereas a total collapse would put it outside.
As, therefore, it was not a matter of part only, but of putting in new
foundations in the entire building, the learned judge found it was not
within the ambit of the covenant. In so far as he appears to be misdirecting
himself on the ratio of Sotheby, the persuasive authority of Sir Brett
Cloutman's judgment in Collins must be considerably eroded.

23. The only other cases in the list are Pembery v Lambdin and Brew
Bros. Now Pembery was clearly a case of inherent defect, but the court
did not there decide that the plaintiff failed because there existed
a doctrine such as that put forward by Mr Colyer. One can, I think,
epitomise Slesser LJ's judgment in that case in this way. The plaintiff
failed because her argument, if correct, would have involved ordering
the defendant to give her a different thing from that which was demised.
This is clearly, in my view, a decision arrived at by considering the
question as one of degree. Brew Bros v Snax, though a case where the
defect was not inherent (see Harman LJ's arguendo at p 622), was nevertheless
a case where at any rate a doctrine of inherent defect such as that
suggested by Mr Colyer was put forward in argument by the landlord (see
p 618G), and countered for the tenants (see p 622B). But both Sachs
LJ at p 640 and Phillimore LJ at p 646 appear to indicate that, whether
or not the case of any want of reparation is an inherent defect, the
question must still be regarded as one of degree in each case.

24. This necessarily brief review of authorities indicates quite clearly
to my mind that apart from Collins, which I consider of doubtful authority,
the explanation of the ratio in Lister's case as giving the tenant a
complete defence, if the cause of the want of reparation is an inherent
defect, has never been adopted by any court, but on the contrary, in
Pembery v Lambdin and Sotheby v Grundy, the court, when dealing with
wants of reparation caused by inherent defect, chose to treat the matter
as one of degree, which in Brew Brothers the court effectively said
that every case, whatever the causation, must be treated as one of degree.

25. I find myself, therefore, unable to accept Mr Colyer's contention
that a doctrine such as he enunciates has any place in the law of landlord
and tenant. The true test is, as the cases show, that it is always a
question of degree whether that which the tenant is being asked to do
can properly be described as repair, or whether on the contrary it would
involve giving back to the landlord a wholly different thing from that
which he demised.

26. In deciding this question, the proportion which the cost of the
disputed work bears to the value or costof the whole premises may sometimes
be helpful as a guide. In this case the figures have not been finally
worked out in complete detail. I have, however, the evidence of Mr Clark,
the contracts manager for Stone Firms Ltd, the contractors who actually
carried out the work. He was not himself responsible for any of the
work, as he joined that company after the work was completed. He is,
however, familiar with that company's methods of charging and so on,
and he has studied the drawings and the analysed quotations produced
by the company. From these he has been able to give me, not a detailed
and accurate costing, but a reliable, broad, estimate of the cost of
that part of the remedial work relating solely to the insertion of expansion
joints. It is, as he said, an indication of the order of magnitude of
the evidence was called and I accept Mr Clark's estimate that the cost
would have been in the region of £ 5,000. The total cost of the
remedial works was around £ 55,000, the balance of £ 50,000
being for refixing the stones and other ancillary works which was not,
as I find, necessary to cure any defect of design, but to remedy what
was originally defective workmanship. For comparison, the cost of building
a structure of this kind in 1973 would have been in the region of £
3m, or rather more. I find myself wholly unable to accept that the cost
of inserting these joints could possibly be regarded as a substantial
part of the cost of the repairs, much less a substantial part of the
value or cost of the building. Mr Colyer urges me not to consider cost
and that may, perhaps, in some circumstances, be right. He argues that
the result of carrying out this improvement is to give back to the landlord
a safe building instead of a dangerous one and this means the premises
now are of a wholly different character. Further, he argues that because
they are of a wholly different character, the work on expansion joints,
the work necessary to cure the inherent defect, is an improvement of
a character which transforms the nature of the premises demised, and,
therefore, cannot fall within the ambit of the covenant to repair. I
cannot accept this. The expansion joints form but a trivial part of
this whole building and looking at it as a question of degree, I do
not consider that they amount to such a change in the character of the
building as to take them out of the ambit of the
covenant to repair.

27. I pass to Mr Colyer's second point, namely that the tenant is not
liable under the repair covenant for that part of any work of repair
necessary to remedy an inherent defect. Again it seems to me that this
must be a question of degree. In the case of Lurcott v Wakely and Wheeler,
the wall was defective in the sense that it had no proper footings or
damp course. When it was rebuilt, concrete footings and damp course
were provided. The court nevertheless found the tenant liable for the
whole cost of the work including these improvements. Mr Colyer seeks
to distinguish that case because, he says, in Lurcott the improvements
were necessary to comply with the requirements of the statute. Here
there was no such requirement and the expansion joints were included
merely as a matter of moral duty.

28. It is quite clear to me from the evidence of both Mr Sculley and
Dr Michael, the two expert structural engineers who gave evidence, and
the only evidence I have on this point, that no competent professional
engineer would have permitted the remedial work to be done without the
inclusion of these expansion joints. By this time it was proper engineering
practice to see that such expansion joints were included, and it would
have been dangerous not to include them. In no realistic sense, therefore,
could it be said that there was any other possible way of reinstating
this cladding than by providing the expansion joints which were, in
fact, provided. It seems to me to matter not whether that state of affairs
is caused by the necessary sanction of statutory notices or by the realistic
fact that as a matter of professional expertise no responsible engineer
would have allowed a rebuilding which did not include such expansion
joints to be carried out. I find myself, therefore, bound to follow
the guidance given by Sir Herbert Cozens-Hardy MR in Lurcott's case
at p 914. It seems to me we should be narrowing in a most dangerous
way the limit
and extent of these covenants if we did not hold that the defendants
were liable under covenants framed as these are to make good the cost
of repairing this wall in the only sense in which it can be repaired,
namely, by rebuilding it according to the requirements of the county
council.

29. Because of the view I have formed, I have not thought it necessary
to consider certain further
submissions by Mr Bernstein. These were based on the special words used
in the covenants in the underlease. I have already mentioned the plethora
of words used to describe the obligations of the tenant in clause 5,
subclause 6. In clause 5, subclauses 11 and 12, there are very many
fewer words, but they include the important word 'defects.' The view
I have formed is, of course, relative to the use of the word 'repair,'
and that by itself seems to me to be sufficient to render the tenant
in this case liable for the whole cost of remedial works. It is not,
therefore, necessary to pursue the question of whether, if it had not
been so, other words used would have been sufficient to fix the tenant
with liability.

30. I accordingly consider that the plaintiffs are entitled to judgment
for the proper cost of the entire worksin this case.
Judgment was given for the plaintiffs with costs.